US20200164667A1 - Printer with cutting head - Google Patents
Printer with cutting head Download PDFInfo
- Publication number
- US20200164667A1 US20200164667A1 US16/686,289 US201916686289A US2020164667A1 US 20200164667 A1 US20200164667 A1 US 20200164667A1 US 201916686289 A US201916686289 A US 201916686289A US 2020164667 A1 US2020164667 A1 US 2020164667A1
- Authority
- US
- United States
- Prior art keywords
- medium
- cutting
- printing
- head
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/66—Applications of cutting devices
- B41J11/663—Controlling cutting, cutting resulting in special shapes of the cutting line, e.g. controlling cutting positions, e.g. for cutting in the immediate vicinity of a printed image
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
- B41J11/00214—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using UV radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0024—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using conduction means, e.g. by using a heated platen
- B41J11/00242—Controlling the temperature of the conduction means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
Definitions
- the present invention relates to a printer with a cutting head.
- printers with a cutting head which print an image on a medium and cut the medium, have been known.
- Japanese Laid-open Patent Publication No. 2018-12163 discloses a printer with a cutting head, which includes a print head, a cutting head, and a crop mark detector.
- Crop marks are reference marks that are position references used in cutting. The crop marks are printed on a medium during printing before cutting.
- Japanese Laid-open Patent Publication No. 2013-159079 discloses a printer with a cutting head, configured to perform cutting before printing.
- An object of the printer with a cutting head described in Japanese Laid-open Patent Publication No. 2013-159079 is to reduce a waiting time for waiting for drying ink.
- the printer with a cutting head described in Japanese Laid-open Patent Publication No. 2013-159079 first prints crop marks on a medium and, after alignment for cutting is performed based on the crop marks, performs cutting. Then, after cutting, an image is printed.
- printing is performed after cutting, and therefore, a time for waiting for drying ink is not needed.
- a medium is reciprocatively moved once in a step of printing crop marks only, then secondly the medium is reciprocatively moved once in cutting, and finally is moved one way in printing an image, that is, the medium is reciprocatively moved 2.5 times in total, in a conveying direction.
- the medium is provided from a roll, it is actually necessary to pull out the medium from the roll before printing in order to peel off the medium from the roll, and thereafter, reciprocatively move the medium once to move back the medium to a print start position.
- the medium is reciprocatively moved in the conveying direction 3.5 times in total.
- the medium is reciprocatively moved once in a step of moving back the medium to a print start position after pulling out the medium from a roll, is reciprocatively moved once in printing an image and crop marks, and is moved one way in cutting, that is, the medium is reciprocatively moved 2.5 times in total.
- printers each including a cutting head and using a roll medium and reduces or prevents a shift of a positional relation between a printed image and a cut line while increasing productivity.
- a printer with a cutting head disclosed herein includes a holder to rotatably hold a roll into which a medium is wound, a conveyer to convey the medium, a cutting head, a cutting head mover to move the cutting head, a print head, and a controller.
- the conveyer conveys the medium in a first conveying direction in which the medium is pulled out from the roll and in a second conveying direction in which the medium that has been pulled out is moved back toward the roll.
- the cutting head mover moves the cutting head such that the cutting head crosses a conveying path of the medium.
- the print head performs printing on the medium which is on the conveying path.
- the controller includes a data storage, a first processor, a second processor, a cutting controller, and a print controller.
- the data storage saves cutting data and print data.
- the first processor is configured or programmed to determine, based on the cutting data saved in the data storage, a cutting area on the medium in which the cutting head performs cutting.
- the second processor controls the conveyer to pull out the medium from the roll until at least the cutting area is moved along the conveying path of the medium to be located farther in the first conveying direction than the cutting head.
- the cutting controller controls, after the medium has been pulled out by the second processor, the cutting head mover, the cutting head, and the conveyer to perform cutting while conveying the medium in the second conveying direction.
- the print controller controls, after cutting has been performed on the medium by the cutting controller, the print head and the conveyer to perform printing while conveying the medium in the first conveying direction.
- the above described printer performs, after pulling out the medium from the roll once, cutting while pulling back the medium toward the roll. After cutting, the printer performs printing while conveying the medium in a direction in which the medium is pulled out from the roll. According to this configuration, printing is performed after cutting, and therefore, a time for waiting for drying ink is not needed.
- the number of times the medium is reciprocatively moved is 1.5, for example, and a time for conveying the medium is able to be reduced. Accordingly, productivity is able to be increased.
- a shift between a print position and a cutting position occurs mainly because of expansion and contraction of a medium caused by printing, accumulation of position shifts caused by slips that occur during conveyance of the medium, or the like.
- cutting is performed on a medium on which crop marks are not printed.
- expansion and contraction caused by printing crop marks do not occur in the medium.
- the minimum number of times the medium is reciprocatively moved is 1.5, for example, and accumulation of position shifts caused by slips of the medium during conveyance of the medium is small. Therefore, according to the above described printer, a shift of a positional relation between a printed image and a cut line is able to be reduced or prevented.
- FIG. 1 is a perspective view of a printer with a cutting head according to a preferred embodiment of the present invention.
- FIG. 2 is a schematic left side view of a main portion of the printer with a cutting head.
- FIG. 3A is a front view of a print head and a cutting head in a state in which a first carriage and a second carriage are connected to each other.
- FIG. 3B is a front view of the print head and the cutting head in a state in which the first carriage and the second carriage are separated from each other.
- FIG. 4 is a block diagram of the printer with a cutting head.
- FIG. 5 is a flowchart illustrating steps of printing and cutting by a first known method.
- FIG. 6 is a plan view illustrating a medium on which printing and cutting have been performed by the first known method.
- FIG. 7 is a flowchart illustrating steps of printing and cutting by a second known method.
- FIG. 8 is a flowchart illustrating steps of printing and cutting.
- FIG. 9 is a plan view illustrating a medium on which cutting has been performed by the printer with a cutting head.
- FIG. 10 is a plan view illustrating the medium on which cutting and printing have been performed by the printer with a cutting head.
- FIG. 11 is a front view illustrating a configuration of a first carriage in a case in which ink is photo curable ink.
- FIG. 1 is a perspective view of an ink jet printer 10 (which will be hereinafter referred to as a printer 10 ) with a cutting head according to a preferred embodiment of the present invention.
- FIG. 2 is a schematic left side view of a main portion of the printer 10 .
- the printer 10 according to this preferred embodiment performs printing and cutting on a medium 5 .
- the medium 5 is a seal material including a mount and a release paper which is stacked on the mount and to which an adhesive is applied.
- the medium 5 may be any medium on which printing and cutting can be performed, and there is no particular limitation on the medium 5 .
- the medium 5 may be a sheet of recording paper, a resin sheet, or the like. As illustrated in FIG. 2 , the medium 5 is wound to form a roll 5 a.
- the printer 10 according to this preferred embodiment performs printing and cutting on the medium 5 while sequentially pulling out the medium 5 supplied as the roll 5 a.
- cutting includes a case in which the medium 5 is entirely cut off in a thickness direction (for example, a case in which both of the mount and the release paper of the seal material are cut off) and a case in which the medium 5 is partially cut off in the thickness direction (for example, a case in which the mount of the seal material is not cut off and only the releases paper is cut off).
- the printer 10 includes a medium supplier 20 that supplies the medium 5 , a platen 11 that supports a portion of the medium 5 which has been pulled out from the roll 5 a, a conveyor 30 that conveys the medium 5 , a heater 12 that heats the medium 5 , a print head 60 that performs printing on the medium 5 , a cutting head 70 that cuts off the medium 5 , and a head mover 40 that moves the print head 60 and the cutting head 70 .
- the print head 60 and the cutting head 70 are movable in a Y direction illustrated in the drawings.
- the medium 5 is able to be conveyed in an X direction illustrated in the drawings.
- the Y direction will be hereinafter referred to as a scanning direction and the X direction will be hereinafter referred to as a conveying direction as appropriate.
- the scanning direction Y is a left-right direction herein.
- the conveying direction X is a front-rear direction herein. In the conveying direction X, one direction will be hereinafter referred to as a first conveying direction X 1 and the other direction will be hereinafter referred to as a second conveying direction X 2 .
- the first conveying direction X 1 is directed to a front of the printer 10 herein.
- the second conveying direction X 2 is directed to a rear of the printer 10 herein.
- the scanning direction Y corresponds to a width direction of the medium 5
- the conveying direction X corresponds to a longitudinal direction (a winding direction) of the medium 5
- the reference symbols F, Rr, L, R, U, and D in FIG. 1 indicate front, rear, left, right, up, and down, respectively.
- the medium supplier 20 is disposed diagonally behind below the platen 11 .
- the medium supplier 20 supplies the medium 5 onto the platen 11 .
- the medium supplier 20 includes a supplying roll 21 and a supplying motor 22 (see FIG. 4 ).
- the supplying roll 21 rotatably holds the roll 5 a into which the medium 5 is wound.
- the supplying roll 21 preferably has a cylindrical shape.
- the supplying roll 21 extends in the scanning direction Y.
- the supplying roll 21 is rotatable around a center axis that extends in the scanning direction Y.
- the roll 5 a of the medium 5 is attached to an outer peripheral portion of the supplying roll 21 . Accordingly, when the supplying roll 21 rotates, the roll 5 a also rotates in the same direction.
- the medium 5 is pulled out from the roll 5 a toward the front (in the first conveying direction X 1 ).
- the supplying motor 22 causes the supplying roll 21 to rotate. When the supplying motor 22 is driven, the supplying roll 21 rotate accordingly.
- the supplying motor 22 is electrically connected to a controller 100 and is controlled by the controller 100 .
- the medium supplier 20 may not include the supplying motor 22 that causes the supplying roll 21 to rotate, and the supplying roll 21 may merely rotate following the medium 5 as the medium 5 is pulled out.
- the supplying roll 21 may not rotate and instead may merely rotatably support the roll 5 a. There is no particular limitation on a configuration of the medium supplier 20 .
- the conveyor 30 moves the medium 5 in the conveying direction X.
- the conveyor 30 includes grit rollers 31 , pinch rollers 32 , and a feed motor 33 (see FIG. 4 ).
- the grit rollers 31 are provided in the platen 11 .
- the grit rollers 31 are driven by the feed motor 33 and rotate.
- the pinch rollers 32 are disposed over the grit rollers 31 .
- the pinch rollers 32 are opposed to the grit rollers 31 .
- the pinch rollers 32 are vertically slidable so as to be able to move close to and apart from the grit rollers 31 .
- the medium 5 is conveyed in the first conveying direction X 1 (forward) or in the second conveying direction X 2 (rearward).
- a conveying path of the medium 5 is set on a route extending from the roll 5 a to the platen 11 and on the platen 11 .
- the feed motor 33 is electrically connected to the controller 100 and is controlled by the controller 100 .
- the first conveying direction X 1 is a direction in which the medium 5 is pulled out from the roll 5 a.
- the second conveying direction X 2 is a direction in which the medium 5 that has been pulled out is moved back toward the roll 5 a.
- the second conveying direction X 2 is an opposite direction to the first conveying direction X 1 .
- the conveyor 30 moves the medium 5 in the conveying direction X by pinching a portion of the medium 5 , which has been pulled out from the roll 5 a, by the grit rollers 31 and the pinch rollers 32 .
- the conveyor 30 moves the medium 5 in the first conveying direction X 1 and the second conveying direction X 2 . Note that, although only three grit rollers 31 and two pinch rollers 32 are illustrated in FIG. 1 , more grit rollers 31 and pinch rollers 32 may be provided such that the grit rollers 31 are arranged in a line and the pinch rollers 32 are arranged in a line in the scanning direction Y in an actual situation.
- FIG. 3A and FIG. 3B are front views of the print head 60 and the cutting head 70 .
- FIG. 3A illustrates a state in which a first carriage 51 on which the print head 60 is mounted and a second carriage 52 on which the cutting head 70 is mounted are connected to each other.
- FIG. 3B illustrates a state in which the first carriage 51 and the second carriage 52 are separated from each other.
- the head mover 40 moves the first carriage 51 and the second carriage 52 as one unit.
- the head mover 40 moves only the second carriage 52 alone.
- the head mover 40 includes a guide rail 41 , a belt 42 , and a scanning motor 43 (see FIG. 4 ).
- the guide rail 41 is provided over the platen 11 .
- the guide rail 41 is disposed farther in the first conveying direction X 1 than the supplying roll 21 .
- the guide rail 41 extends in the scanning direction Y.
- the first carriage 51 and the second carriage 52 are slidably engaged with the guide rail 41 .
- the print head 60 is mounted on the first carriage 51 .
- the cutting head 70 is mounted on the second carriage 52 .
- the print head 60 and the cutting head 70 are engaged with the guide rail 41 via the first carriage 51 and the second carriage 52 , respectively.
- the second carriage 52 is engaged with the guide rail 41 on a left side of the first carriage 51 .
- the belt 42 extends in the scanning direction Y.
- the belt 42 is fixed to an upper portion of a back surface of the second carriage 52 .
- the belt 42 is connected to the scanning motor 43 .
- the scanning motor 43 rotates, the belt 42 runs in the scanning direction Y.
- the second carriage 52 moves in the scanning direction Y.
- the scanning motor 43 is electrically connected to the controller 100 and is controlled by the controller 100 .
- the first carriage 51 and the second carriage 52 are connected to each other or are separated from one another by a connector 80 .
- the connector 80 includes a first connector 81 provided in the first carriage 51 and a second connector 82 provided in the second carriage 52 .
- the first connector 81 is provided on a left side portion of the first carriage 51 .
- the second connector 82 is provided on a right side portion of the second carriage 52 .
- the connector 80 connects the first carriage 51 and the second carriage 52 using magnetic force.
- One of the first connector 81 and the second connector 82 includes a magnet and the other one of the first connector 81 and the second connector 82 includes a magnetic body that attracts the magnet.
- the connector 80 is not limited to a connector using magnetic force and may have some other configuration, such as an engaging member or the like.
- the first connector 81 and the second connector 82 contact each other, and thus, the first carriage 51 and the second carriage 52 are connected to each other.
- a receiving metal fitting 53 that preferably is preferably L-shaped or substantially L-shaped is provided on a right side of the first carriage 51 .
- a lock 90 used to fix the first carriage 51 is provided around a right end of the guide rail 41 .
- a position of the right end of the guide rail 41 to which the first carriage 51 is fixed will be hereinafter referred to as a standby position.
- the lock 90 includes a hook 91 that is hooked on the receiving metal fitting 53 and a locking solenoid 92 (see FIG. 4 ) that moves the hook 91 between a lock position (see FIG. 3B ) and an unlock position (see FIG. 3A ).
- the locking solenoid 92 is electrically connected to the controller 100 and is controlled by the controller 100 .
- the hook 91 is set to the unlock position.
- the second carriage 52 moves rightward and the first connector 81 and the second connector 82 contact with each other, the second carriage 52 and the first carriage 51 are connected to each other.
- the first carriage 51 is movable with the second carriage 52 in the scanning direction Y.
- the print head 60 and the cutting head 70 are moved in the scanning direction Y so as to cross a moving path of the medium 5 (on the platen 11 herein).
- the first carriage 51 is positioned in the standby position, and the hook 91 of the lock 90 is set to the lock position.
- movement of the first carriage 51 is blocked.
- the second carriage 52 moves leftward, the first connector 81 and the second connector 82 are separated from each other and connection of the second carriage 52 and the first carriage 51 is removed.
- the second carriage is movable in the scanning direction Y.
- the cutting head 70 is moved alone in the scanning direction Y on the moving path of the medium 5 (on the platen 11 herein).
- the print head 60 is mounted on the first carriage 51 .
- the print head 60 includes a plurality of ink heads 61 .
- the print head 60 includes five ink heads 61 herein, for example.
- the plurality of ink heads 61 are disposed in a line in the scanning direction Y.
- a plurality of nozzles (not illustrated) are provided on lower surfaces of the plurality of ink heads 61 .
- Each of the plurality of nozzles ejects ink.
- the plurality of nozzles are disposed in a line in the conveying direction X.
- the five ink heads 61 eject inks of five different colors, for example, yellow ink, magenta ink, cyan ink, black ink, and white ink.
- the number of the ink heads 61 is not limited to five, and there is no limitation on colors of the inks ejected by the ink heads 61 .
- thermosetting ink is used.
- the thermosetting ink is, for example, solvent ink or the like, and is dried and cured by heat.
- the print head 60 ejects the thermosetting ink to the medium 5 on the platen 11 .
- the print head 60 performs printing on the medium 5 by ejecting the thermosetting ink.
- the ink heads 61 are, for example, ink jet heads.
- a printing system of the print head 60 is not limited to an ink jet system, and the print head 60 is not limited to a print head including an ink jet head.
- the print head 60 may include a print head that performs, for example, printing of a dot impact system.
- the cutting head 70 is mounted on the second carriage 52 .
- the cutting head 70 includes a cutter 71 and a solenoid 72 .
- the cutter 71 is able to move in an up-down direction by the solenoid 72 .
- the solenoid 72 is turned on and off, the cutter 71 moves in the up-down direction to contact the medium 5 or be separated from the medium 5 .
- the solenoid 72 is electrically connected to the controller 100 and is controlled by the controller 100 .
- the head mover 40 moves the cutting head 70 alone or the print head 60 and the cutting head 70 as one unit in the scanning direction Y.
- a configuration of the head mover is not limited to the above described configuration.
- the head mover may have a function as a cutting head mover that moves the cutting head 70 such that the cutting head 70 crosses the conveying path of the medium 5 , and there is no other limitation thereon.
- the print head may be a so-called line head, and may not move.
- the print head may perform printing on the medium 5 placed on the conveying path.
- the head mover may be divided into a first mover that moves the print head 60 in the scanning direction Y and a second mover that moves the cutting head 70 in the scanning direction Y.
- the print head 60 and the cutting head 70 may be engaged with different guide rails and may be moved by different driving units.
- the heater 12 is provided under the platen 11 .
- the heater 12 is able to contact a lower surface of the platen 11 .
- the heater 12 includes, for example, a heating wire or the like.
- the heater 12 indirectly heats the medium 5 by heating the platen 11 .
- the heater 12 may heat the medium 5 , for example, by blowing a hot air to the medium 5 .
- the heater 12 is provided on a back side of the platen 11 herein.
- the heater 12 is provided immediately under the print head 60 , in a portion therearound, and behind the print head 60 in the scanning direction Y.
- FIG. 4 is a block diagram of the printer 10 .
- the controller 100 is connected to the heater 12 , the supplying motor 22 , the feed motor 33 , the scanning motor 43 , the ink heads 61 , the solenoid 72 , the locking solenoid 92 , and the operation panel 110 and controls operation of the components.
- the controller 100 is, for example, a microcomputer.
- the microcomputer includes, for example, an interface (I/F) to receive print data, cutting data, or the like from an external device, such as a host computer or the like, a central processing unit (CPU) configured or programmed to execute an order of a control program, a read-only memory (ROM) to store a program that is executed by the CPU, a random access memory (RAM) used as a working area in which the program is developed, and a storage, such as a memory or the like, to store the above described program and various types of data.
- the controller 100 may not be provided inside the printer 10 , and may be, for example, a computer or the like which is installed outside the printer 10 and is communicably connected with the printer 10 via a wired or wireless communication.
- the controller 100 includes a data storage 101 , a preprocessor 102 , a cutting controller 103 , a print controller 104 , and a heating controller 105 .
- the controller 100 may include some other processor or processors, but illustration and description thereof will be omitted herein.
- the data storage 101 saves cutting data and print data. Work data including the cutting data and the print data is created by an external computer or the like and is transmitted to the controller 100 .
- the data storage 101 temporarily saves the work data.
- the cutting controller 103 and the print controller 104 execute contents of the work data temporarily saved in the data storage 101 .
- the preprocessor 102 controls an operation of pulling out the medium 5 from the roll 5 a before cutting and printing. Although details will be described later, in this preferred embodiment, the medium 5 is pulled out in the first conveying direction X 1 (forward herein) once before cutting and printing.
- the preprocessor 102 includes a first processor 102 a and a second processor 102 b.
- the first processor 102 a determines an area (which will be hereinafter referred to as a cutting area) on the medium in which the cutting head 70 performs cutting, based on the cutting data saved in the data storage 101 .
- the second processor 102 b controls the conveyor 30 to pull out the medium 5 from the roll 5 a until at least the cutting area moves along the conveying path of the medium 5 to be located farther in the first conveying direction X 1 than the cutting head 70 .
- the second processor 102 b is set to convey the medium 5 in the first conveying direction X 1 until a rear end of the cutting area reaches directly under the cutting head 70 .
- the cutting controller 103 performs control related to cutting.
- the cutting controller 103 according to this preferred embodiment is set to control, after the medium 5 has been pulled out from the roll 5 a by the second processor 102 b, the head mover 40 , the cutting head 70 , and the conveyor 30 to perform cutting while conveying the medium 5 in the second conveying direction X 2 .
- cutting is performed while moving back the medium 5 toward the roll 5 a.
- the cutting controller 103 includes a first cutting controller 103 a.
- the first cutting controller 103 a is set to perform, after the medium 5 has been pulled out from the roll 5 a by the second processor 102 b, cutting without correcting a cutting position. More specifically, it is also set to start cutting without printing crop marks that are references for the cutting position on the medium 5 and performing position correction using the crop marks. Details of this control will be described later.
- the print controller 104 performs control related to printing.
- the print controller 104 according to this preferred embodiment is set to control, after cutting has been performed on the medium 5 by the cutting controller 103 , the head mover 40 , the print head 60 , and the conveyor 30 to perform printing while conveying the medium 5 in the first conveying direction X 1 .
- printing is performed while moving the medium 5 in the first conveying direction X 1 .
- the print controller 104 includes a first print controller 104 a.
- the first print controller 104 a is set to perform, after cutting has been performed on the medium 5 by the cutting controller 103 , printing without correcting a print position. More specifically, it is also set to start cutting without performing position correction using the crop marks. Details of this control will be also described later.
- the heating controller 105 controls an operation of the heater 12 .
- the heating controller 105 is set to stop the heater 12 during cutting and operate the heater 12 during printing. Note that, in this preferred embodiment, the heater 12 is not provided farther in the first conveying direction X 1 than the print head 60 and does not heat the medium 5 after printing, but the heater 12 may heat the medium 5 also after printing. As another option, the heater 12 may heat the medium 5 only after printing.
- the heating controller 105 may operate the heater 12 at least one of during printing and after printing. A condition of heating by the heater 12 may be appropriately set in accordance with drying property of ink or the like.
- a known method (a first method) will be described first.
- a printer with a cutting head is operative such that a medium is supplied in a form of a roll and cutting is performed after printing.
- a known method (a second known method) will be described next.
- a printer with a cutting head is operative such that a medium is supplied in a form of a roll and printing is performed after cutting.
- each of the known printers with a cutting head may have a similar mechanical configuration to that of this preferred embodiment except that each of the known printers includes a crop mark detector. Therefore, in the following description of the known methods, components in common with those in this preferred embodiment are denoted by the same reference symbols used in the description of this preferred embodiment.
- Each of the first and second known methods is merely an example.
- the first known method is an example of a printing and cutting method in which printing is performed first and cutting is performed after printing.
- FIG. 5 is a flowchart illustrating steps of printing and cutting by the first known method.
- FIG. 6 is a plan view illustrating the medium 5 on which printing and cutting have been performed by the first known method. As illustrated in FIG. 5 , in this preferred embodiment, Step S 11 to S 20 are executed.
- Step S 11 the medium 5 is pulled out in the first conveying direction X 1 .
- the medium 5 is already sandwiched between the grit rollers 31 and the pinch rollers 32 by printing and cutting performed before Step S 11 .
- the medium 5 may be sandwiched by the grit rollers 31 and the pinch rollers 32 again in this step.
- the grit rollers 31 are caused to rotate in a state in which the medium 5 is sandwiched by the grit rollers 31 and the pinch rollers 32 .
- the medium 5 is moved in the first conveying direction X 1 .
- Step S 12 the medium 5 is moved in the second conveying direction X 2 by the grit rollers 31 and the pinch rollers 32 .
- Step S 12 the medium 5 is pulled back to a print start position.
- the medium 5 is peeled off from the roll 5 a once by Step S 11 described above. After this, the medium 5 is conveyed in the conveying direction X without impairing position accuracy due to adhesion between the medium 5 and the roll 5 a. The medium 5 is moved back to the print start position in Step S 12 in order to perform printing in Step S 13 and subsequent steps. The medium 5 has been reciprocatively moved in the moving conveying direction X once by Steps S 11 and S 12 .
- Step S 13 to S 15 printing of an image 200 and crop marks C 1 and C 2 is performed.
- Step S 13 the front side crop marks C 1 are printed.
- Step S 13 first, the first carriage 51 and the second carriage 52 are connected to each other. Thus, the print head 60 can be moved by the head mover 40 . In printing, the print head 60 is moved with the first carriage 51 in the scanning direction Y and ejects ink. Thus, printing in one position in the conveying direction X is completed. Thereafter, the medium 5 is conveyed in the first conveying direction X 1 . Next printing is performed in a position in the conveying direction X after the above described movement. By repeating this operation, the front side crop marks C 1 are printed on the medium 5 .
- Step S 14 the image 200 is printed on the medium 5 .
- Step S 15 the rear side crop marks C 2 are printed on the medium 5 .
- Step S 13 to S 15 the medium 5 is heated by the heater 12 .
- An area of the platen 11 behind the print head 60 is heated by the heater 12 . Accordingly, each portion of the medium 5 is heated before and during printing.
- Step S 16 is a step of waiting for drying ink. In Step S 16 , a time for waiting for drying ink occurs.
- Step S 17 the medium 5 is pulled back again to the printing start position in the second conveying direction X 2 .
- the medium 5 is further reciprocatively moved once in the conveying direction X by Steps S 13 to S 17 .
- Step S 18 positions of the crop marks C 1 and C 2 are detected by a crop mark detector, and a correction value for the cutting position is calculated.
- Step S 19 cutting data is corrected based on the above described correction value.
- Various technologies for this correction method have been known, and therefore, description thereof will be omitted.
- a positional relation between the image 200 and a cut line 210 is likely to be shifted. This shift is caused, for example, by expansion and contraction of the medium 5 during printing, a slip caused between the medium 5 and the grit rollers 31 during conveyance of the medium 5 , or the like. Expansion and contraction of the medium 5 are caused, for example, by absorption of ink and heating by the heater 12 .
- Step S 20 cutting is performed based on the cutting data after being corrected.
- Step S 20 first, the first carriage 51 and the second carriage 52 are separated from each other. Thus, the cutting head 70 can be moved alone. The cutter 71 is lowered to contact the medium 5 .
- the medium 5 is moved in the conveying direction X while moving the cutting head 70 in the scanning direction Y.
- a cutting edge of the cutter 71 moves along the cut line 210 on the medium 5 .
- Cutting in Step S 20 is basically performed while moving the medium 5 in the first conveying direction X 1 . In a case illustrated in FIG. 6 , cutting is performed in an order indicated by an arrow illustrated in FIG. 6 .
- the medium 5 is moved by an amount corresponding to one way (for example, 0.5 reciprocations) in the conveying direction X by Step S 20 .
- “performing cutting while conveying the medium 5 in the first conveying direction X 1 ” includes a case in which, even when the medium 5 is temporarily moved in the second conveying direction X 2 that is an opposite direction to the first conveying direction X 1 , the medium 5 is finally moved in the first conveying direction X 1 .
- the medium 5 is reciprocatively moved once in Steps S 11 and S 12 , is reciprocatively moved once in Steps S 13 to S 17 , and reciprocatively moved 0.5 times in Step S 20 , that is, the medium 5 is reciprocatively moved 2.5 times in total, in the conveying direction X.
- Step S 16 a time for waiting for drying ink occurs.
- Steps S 13 and S 15 a time for printing each of the crop marks C 1 and C 2 occurs, and in Steps S 18 and S 19 , a time for correcting the cutting position occurs.
- the second known method is an example of a printing and cutting method in which cutting is performed first and printing is performed after cutting.
- FIG. 7 is a flowchart illustrating steps of printing and cutting by the second known method. As illustrated in FIG. 7 , in this method, Steps S 21 to S 33 are executed.
- Steps S 21 and S 22 similar to Steps S 11 and S 12 in the first known method, pulling out and pulling back of the medium 5 are executed.
- the medium 5 is reciprocatively moved once in the conveying direction X by Steps S 21 and S 22 .
- Steps S 23 and S 24 only the crop marks C 1 and C 2 are printed on the medium 5 .
- the image 200 is not printed.
- Step S 23 the front side crop marks C 1 are printed on the medium 5 while the medium 5 is sent in the first conveying direction X 1 .
- Step S 24 the rear side crop marks C 2 are printed on the medium 5 while the medium 5 is subsequently sent in the first conveying direction X 1 .
- Step S 25 it is waited for ink forming the crop marks C 1 and C 2 to dry.
- Step S 26 the medium 5 is pulled back to the print start position in the second conveying direction X 2 .
- the medium 5 is further reciprocatively moved once in the conveying direction X by Steps S 23 to S 26 .
- Step S 27 the positions of the crop marks C 1 and C 2 are detected by the crop mark detector, and a correction value for the cutting position is calculated.
- Step S 28 the cutting data is corrected based on the above described correction value.
- Step S 29 cutting is performed based on the cutting data after being corrected. Cutting of Step S 29 is performed while moving the medium 5 in the first conveying direction X 1 .
- Step S 30 the medium 5 is moved back in the second conveying direction X 2 . The medium 5 is reciprocatively moved three times in total in the conveying direction X by the steps described so far.
- Step S 31 the positions of the crop marks C 1 and C 2 are detected by the crop mark detector, and a correction value for the printing position is calculated.
- Step S 32 the printing data is corrected based on the above described correction value.
- Step S 33 printing is performed based on the printing data after being corrected. Printing of Step S 33 is performed while moving the medium 5 in the first conveying direction X 1 .
- the medium 5 is reciprocatively moved 3.5 times in total in the conveying direction X by the above described steps.
- Step S 23 and S 24 a time for printing each of the crop marks C 1 and C 2 occurs, and in Step S 25 , a time for waiting for drying ink forming the crop marks C 1 and C 2 occurs. Furthermore, in Steps S 27 and S 28 , a time for correcting the cutting position occurs, and in Steps S 31 and S 32 , a time for correcting the print position occurs.
- a time for waiting for drying ink forming the image 200 does not occur, but the time for waiting for drying ink forming the crop marks C 1 and C 2 still occurs.
- the number of times the medium 5 is reciprocatively moved is increased to a larger number than that of the first known method.
- the number of times position correction is performed is also increased.
- the number of times the medium 5 is reciprocatively moved in the second known method can be reduced to a number that is the same as that in the first known method simply by omitting printing of the crop marks C 1 and C 2 .
- the positional relation between the cut line 210 for cutting and the image 200 is likely to be shifted.
- position accuracy in cutting is highly likely to be impaired by resistance when the medium 5 is pulled out from the roll 5 a.
- the positional relation between the cut line 210 and the image 200 is highly likely to be shifted.
- FIG. 8 is a flowchart illustrating steps of printing and cutting according to this preferred embodiment.
- FIG. 9 is a plan view illustrating the medium 5 on which cutting has been performed by the printer 10 according to this preferred embodiment.
- FIG. 10 is a plan view illustrating the medium 5 on which cutting and printing have been performed by the printer 10 according to this preferred embodiment. As illustrated in FIG. 8 , in this preferred embodiment, Steps S 01 to S 03 are executed.
- Step S 01 the medium 5 is pulled out in the first conveying direction X 1 (forward).
- Step S 01 the medium 5 is pulled out from the roll 5 a until a cutting area A 1 illustrated in FIG. 9 is moved to be located farther in the first conveying direction X 1 than the cutting head 70 .
- the cutting area A 1 is an area on the medium 5 in which the cutting head 70 performs cutting.
- the cutting area A 1 is determined based on the cutting data. Accordingly, the printer 10 conveys the medium 5 in the first conveying direction X 1 until all of cut lines 210 on the cutting data are moved to be located farther in the first conveying direction X 1 than the cutting head 70 .
- the printer 10 conveys the medium 5 in the first conveying direction X 1 until a rear end (an end in the second conveying direction X 2 ) A 1 a of the cutting area A 1 reaches under the cutting head 70 .
- the medium 5 may be slightly excessively moved. In that case, an area slightly behind the rear end A 1 a of the cutting area A 1 is located under the cutting head 70 .
- the medium 5 that has adhered to the roll 5 a is pulled out from the roll 5 a by Step S 01 .
- the cutting area A 1 is moved to a position farther forward than the cutting head 70 .
- Step S 02 cutting is performed while moving the medium 5 in the second conveying direction X 2 (rearward).
- cutting is performed in an order indicated by an arrow illustrated in FIG. 9 .
- the medium 5 has been already moved back to the print start position.
- “performing cutting while conveying the medium 5 in the second conveying direction X 2 ” includes a case in which, even when the medium 5 is temporarily moved in the first conveying direction X 1 that is an opposite direction to the second conveying direction X 2 , the medium 5 is finally moved in the second conveying direction X 2 .
- the medium 5 is reciprocatively moved once in the conveying direction X by the steps described so far.
- Step S 02 is performed while moving back the medium 5 that has been pulled out from the roll 5 a once toward the roll 5 a. Accordingly, resistance that blocks movement of the medium 5 due to adhesion of the roll 5 a and the medium 5 is not generated. Therefore, the cut line 210 is able to be processed in a desired position. For example, when, instead of Steps S 01 and S 02 , cutting is performed while moving the medium 5 the first conveying direction X 1 first without performing any other steps therebefore, the medium 5 cannot be conveyed by a desired distance because of resistance resulting from peeling off the medium 5 from the roll 5 a, and the position of the cut line 210 is highly likely to be shifted from a target position.
- Steps S 01 and S 02 the heater 12 is stopped.
- the heater 12 is used for drying ink and is not needed in cutting.
- the heater 12 is stopped in order not to cause the medium 5 to be expanded and contracted by heat herein.
- the heater 12 may be operated also during Steps S 01 and S 02 .
- Step S 03 printing of the image 200 is performed while moving the medium 5 in the first conveying direction X 1 (forward).
- Step S 03 printing of the image 200 is performed in an order indicated by an arrow illustrated in FIG. 10 .
- the heater 12 heats the platen 11 .
- the medium 5 is heated, and drying ink is promoted.
- the image 200 and the cut line 210 illustrated in FIG. 10 are formed by Step S 03 .
- all steps of printing and cutting are terminated.
- the medium 5 is reciprocatively moved 1.5 times in the conveying direction X by Steps S 01 to S 03 .
- the printer 10 determines the cutting area A 1 , based on the cutting data, and performs Step S 01 of pulling out the medium 5 from the roll 5 a until the cutting area A 1 is located farther in the first conveying direction X 1 than the cutting head 70 . Furthermore, after Step S 01 , Step S 02 of cutting is performed while moving the medium 5 in the second conveying direction X 2 . Furthermore, after Step S 02 , Step S 03 of printing while moving the medium 5 in the first conveying direction X 1 is performed.
- the number of times the medium 5 is reciprocatively moved is 1.5 times. According to the above described printer 10 , the number of times the medium 5 is reciprocatively moved can be reduced as compared to the first and second known methods. Therefore, productivity is further increased as compared to the first and second known methods. As compared to the first known method, productivity is increased in a point that a step of waiting for drying ink is not needed.
- a positional relation between the cut line 210 and the image 200 is not influenced by expansion and contraction of the medium 5 caused by impact of ink thereon.
- a cause of a shift of the positional relation between the cut line 210 and the image 200 is expansion and contraction of the medium 5 caused by impact of the ink thereon.
- cutting is performed before printing. Therefore, expansion and contraction of the medium 5 caused by impact of the ink is not related to the position accuracy in cutting. As a result, the printer 10 according to this preferred embodiment is able to reduce or prevent a shift of the positional relation between the image 200 and the cut line 210 .
- the heating controller 105 is set to stop the heater 12 during cutting and operate the heater 12 during printing. Therefore, the heater 12 does not heat the medium 5 during cutting, and expansion and contraction of the medium 5 by heat of the heater 12 are less likely to occur. Accordingly, a shift of the cutting position is able to be reduced or prevented also by the above described configuration.
- a cause of the shift of the positional relation between the image 200 and the cut line 210 is a slip of the medium 5 during conveyance of the medium 5 .
- a conveying distance of the medium 5 is small, and therefore, an accumulated slip amount of the medium 5 is small. Accordingly, position shifts in cutting and printing are small. Position accuracy in cutting and printing is able to be increased by reducing the conveying distance of the medium 5 .
- the present inventor actually performed printing and cutting by the printer 10 according to this preferred embodiment and confirmed that there is no problem in the positional relation between the cut line and the image.
- the first cutting controller 103 a is set to perform, after the medium 5 has been pulled out from the roll 5 a in Step S 01 , cutting without correcting the cutting position.
- the crop marks C 1 and C 2 are not printed, and correction of the cutting position using the crop marks C 1 and C 2 is not performed.
- a time required for correcting the cutting position is able to be omitted, and productivity is able to be further increased.
- a time for printing the crop marks C 1 and C 2 is able to be also omitted.
- the first print controller 104 a is set to perform, after cutting of Step S 02 , printing without correcting the print position.
- correction of the print position using the crop marks C 1 and C 2 is not performed before printing. According to the above described configuration, a time required for correcting the print position is able to be omitted, and productivity is able to be further increased.
- the above described printer with a cutting head does not perform cutting after correcting the cutting position, but it may do so.
- the printer with a cutting head may be operative such that a mode in which cutting is performed without correcting the cutting position (the above described preferred embodiment) and a mode in which cutting is performed after correcting the cutting position can be selected.
- the printer with a cutting head may be operative such that a mode in which printing is performed without correcting the print position (the above described preferred embodiment) and a mode in which printing is performed after correcting the print position can be selected.
- steps of printing crop marks and performing alignment, based on the crop marks are added. Even in that case, cutting is performed while moving back the medium in the second conveying direction, and therefore, the medium is moved less than in the second known method accordingly. Therefore, higher productivity than that of the second known method can be realized.
- the ink is thermosetting ink
- the printer 10 includes the heater 12 that dries the ink.
- the ink is not limited to the thermosetting ink, and may be, for example, photo curable ink.
- FIG. 11 is a front view illustrating a configuration of the first carriage 51 in a case in which photo curable ink is used.
- the printer with a cutting head includes a light irradiator 54 that irradiates a medium with light that cures ink.
- the light irradiator 54 radiates ultraviolet rays herein.
- the ink is an ultraviolet curing ink.
- the light irradiator 54 includes an ultraviolet lamp 54 a inside.
- the ultraviolet lamp 54 a is a light source that emits an ultraviolet ray.
- the light irradiator 54 includes an irradiation port 54 b in a lower surface.
- the irradiation port 54 b is provided by fitting a cover that transmits ultraviolet rays into an opening in the lower surface of the light irradiator 54 .
- the light irradiator 54 is provided in a left side of the print head 60 in the first carriage 51 .
- the light irradiator 54 is moved with the print head 60 as one unit and irradiates an area on the medium to which the print head 60 has ejected ink with ultraviolet rays. According to the above described printer with a cutting head, the medium is not heated, and therefore, temperature of the medium during cutting and temperature of the medium during printing is less likely to differ from each other. Therefore, accuracy of alignment of the cutting position with the print position is able to be increased.
- the present invention encompasses any of preferred embodiments including equivalent elements, modifications, deletions, combinations, improvements and/or alterations which can be recognized by a person of ordinary skill in the art based on the invention.
- the elements of each claim should be interpreted broadly based on the terms used in the claim, and should not be limited to any of the preferred embodiments described in this specification or referred to during the prosecution of the present application.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Handling Of Sheets (AREA)
- Ink Jet (AREA)
Abstract
A printer with a cutting head operates such that a medium is pulled out from a roll until at least a cutting area is moved along a conveying path of the medium to be located farther in a first conveying direction than the cutting head. The first conveying direction is a direction in which the medium is pulled out from the roll. Thereafter, the printer with a cutting head performs cutting while conveying the medium in a second conveying direction in which the medium that has been pulled out is moved back. Thereafter, the printer with a cutting head further performs printing while conveying the medium in the first conveying direction.
Description
- This application claims the benefit of priority to Japanese Patent Application No. 2018-219521 filed on Nov. 22, 2018. The entire contents of this application are hereby incorporated herein by reference.
- The present invention relates to a printer with a cutting head.
- Conventionally, printers with a cutting head, which print an image on a medium and cut the medium, have been known. For example, Japanese Laid-open Patent Publication No. 2018-12163 discloses a printer with a cutting head, which includes a print head, a cutting head, and a crop mark detector. Crop marks are reference marks that are position references used in cutting. The crop marks are printed on a medium during printing before cutting.
- For example, Japanese Laid-open Patent Publication No. 2013-159079 discloses a printer with a cutting head, configured to perform cutting before printing. An object of the printer with a cutting head described in Japanese Laid-open Patent Publication No. 2013-159079 is to reduce a waiting time for waiting for drying ink. In order to achieve the object, the printer with a cutting head described in Japanese Laid-open Patent Publication No. 2013-159079 first prints crop marks on a medium and, after alignment for cutting is performed based on the crop marks, performs cutting. Then, after cutting, an image is printed. In the printer with a cutting head disclosed in Japanese Laid-open Patent Publication No. 2013-159079, printing is performed after cutting, and therefore, a time for waiting for drying ink is not needed.
- In a method disclosed in Japanese Laid-open Patent Publication No. 2013-159079, firstly a medium is reciprocatively moved once in a step of printing crop marks only, then secondly the medium is reciprocatively moved once in cutting, and finally is moved one way in printing an image, that is, the medium is reciprocatively moved 2.5 times in total, in a conveying direction. Furthermore, although not described in Japanese Laid-open Patent Publication No. 2013-159079, in a case in which the medium is provided from a roll, it is actually necessary to pull out the medium from the roll before printing in order to peel off the medium from the roll, and thereafter, reciprocatively move the medium once to move back the medium to a print start position. Therefore, in the case in which the medium is supplied from the roll, in the method described in Japanese Laid-open Patent Publication No. 2013-159079, the medium is reciprocatively moved in the conveying direction 3.5 times in total. On the other hand, in a typical method in which printing is performed first and cutting is performed thereafter, as for conveyance of a medium, the medium is reciprocatively moved once in a step of moving back the medium to a print start position after pulling out the medium from a roll, is reciprocatively moved once in printing an image and crop marks, and is moved one way in cutting, that is, the medium is reciprocatively moved 2.5 times in total. As described above, in the method described in Japanese Laid-open Patent Publication No. 2013-159079, a time for waiting for drying ink after printing is not needed, but a time required for conveying the medium is increased. Accordingly, productivity cannot be increased by the method disclosed in Japanese Laid-open Patent Publication No. 2013-159079 in some cases. However, when printing of crop marks is merely omitted in order to increase productivity, there is a probability that a positional relation between a cut line for cutting and a printed image is shifted.
- In view of the foregoing, preferred embodiments of the present invention provide printers each including a cutting head and using a roll medium and reduces or prevents a shift of a positional relation between a printed image and a cut line while increasing productivity.
- A printer with a cutting head disclosed herein includes a holder to rotatably hold a roll into which a medium is wound, a conveyer to convey the medium, a cutting head, a cutting head mover to move the cutting head, a print head, and a controller. The conveyer conveys the medium in a first conveying direction in which the medium is pulled out from the roll and in a second conveying direction in which the medium that has been pulled out is moved back toward the roll. The cutting head mover moves the cutting head such that the cutting head crosses a conveying path of the medium. The print head performs printing on the medium which is on the conveying path. The controller includes a data storage, a first processor, a second processor, a cutting controller, and a print controller. The data storage saves cutting data and print data. The first processor is configured or programmed to determine, based on the cutting data saved in the data storage, a cutting area on the medium in which the cutting head performs cutting. The second processor controls the conveyer to pull out the medium from the roll until at least the cutting area is moved along the conveying path of the medium to be located farther in the first conveying direction than the cutting head. The cutting controller controls, after the medium has been pulled out by the second processor, the cutting head mover, the cutting head, and the conveyer to perform cutting while conveying the medium in the second conveying direction. The print controller controls, after cutting has been performed on the medium by the cutting controller, the print head and the conveyer to perform printing while conveying the medium in the first conveying direction.
- The above described printer performs, after pulling out the medium from the roll once, cutting while pulling back the medium toward the roll. After cutting, the printer performs printing while conveying the medium in a direction in which the medium is pulled out from the roll. According to this configuration, printing is performed after cutting, and therefore, a time for waiting for drying ink is not needed. In the above described printer, the number of times the medium is reciprocatively moved is 1.5, for example, and a time for conveying the medium is able to be reduced. Accordingly, productivity is able to be increased.
- According to the discoveries of the present inventor, a shift between a print position and a cutting position occurs mainly because of expansion and contraction of a medium caused by printing, accumulation of position shifts caused by slips that occur during conveyance of the medium, or the like. In the above described printer with a cutting head, cutting is performed on a medium on which crop marks are not printed. Thus, at the time of cutting, expansion and contraction caused by printing crop marks do not occur in the medium. In the above described printer with a cutting head, the minimum number of times the medium is reciprocatively moved is 1.5, for example, and accumulation of position shifts caused by slips of the medium during conveyance of the medium is small. Therefore, according to the above described printer, a shift of a positional relation between a printed image and a cut line is able to be reduced or prevented.
- The above and other elements, features, steps, characteristics and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments with reference to the attached drawings.
-
FIG. 1 is a perspective view of a printer with a cutting head according to a preferred embodiment of the present invention. -
FIG. 2 is a schematic left side view of a main portion of the printer with a cutting head. -
FIG. 3A is a front view of a print head and a cutting head in a state in which a first carriage and a second carriage are connected to each other. -
FIG. 3B is a front view of the print head and the cutting head in a state in which the first carriage and the second carriage are separated from each other. -
FIG. 4 is a block diagram of the printer with a cutting head. -
FIG. 5 is a flowchart illustrating steps of printing and cutting by a first known method. -
FIG. 6 is a plan view illustrating a medium on which printing and cutting have been performed by the first known method. -
FIG. 7 is a flowchart illustrating steps of printing and cutting by a second known method. -
FIG. 8 is a flowchart illustrating steps of printing and cutting. -
FIG. 9 is a plan view illustrating a medium on which cutting has been performed by the printer with a cutting head. -
FIG. 10 is a plan view illustrating the medium on which cutting and printing have been performed by the printer with a cutting head. -
FIG. 11 is a front view illustrating a configuration of a first carriage in a case in which ink is photo curable ink. - With reference to the attached drawings, preferred embodiments of the present invention will be described below.
FIG. 1 is a perspective view of an ink jet printer 10 (which will be hereinafter referred to as a printer 10) with a cutting head according to a preferred embodiment of the present invention.FIG. 2 is a schematic left side view of a main portion of theprinter 10. As illustrated inFIG. 1 , theprinter 10 according to this preferred embodiment performs printing and cutting on amedium 5. Although not illustrated, the medium 5 according to this preferred embodiment is a seal material including a mount and a release paper which is stacked on the mount and to which an adhesive is applied. However, themedium 5 may be any medium on which printing and cutting can be performed, and there is no particular limitation on themedium 5. The medium 5 may be a sheet of recording paper, a resin sheet, or the like. As illustrated inFIG. 2 , themedium 5 is wound to form aroll 5 a. Theprinter 10 according to this preferred embodiment performs printing and cutting on the medium 5 while sequentially pulling out the medium 5 supplied as theroll 5 a. As used herein “cutting” includes a case in which themedium 5 is entirely cut off in a thickness direction (for example, a case in which both of the mount and the release paper of the seal material are cut off) and a case in which themedium 5 is partially cut off in the thickness direction (for example, a case in which the mount of the seal material is not cut off and only the releases paper is cut off). - The
printer 10 includes amedium supplier 20 that supplies themedium 5, aplaten 11 that supports a portion of the medium 5 which has been pulled out from theroll 5 a, aconveyor 30 that conveys themedium 5, aheater 12 that heats themedium 5, aprint head 60 that performs printing on themedium 5, a cuttinghead 70 that cuts off themedium 5, and ahead mover 40 that moves theprint head 60 and the cuttinghead 70. Although details will be described later, theprint head 60 and the cuttinghead 70 are movable in a Y direction illustrated in the drawings. Themedium 5 is able to be conveyed in an X direction illustrated in the drawings. The Y direction will be hereinafter referred to as a scanning direction and the X direction will be hereinafter referred to as a conveying direction as appropriate. The scanning direction Y is a left-right direction herein. The conveying direction X is a front-rear direction herein. In the conveying direction X, one direction will be hereinafter referred to as a first conveying direction X1 and the other direction will be hereinafter referred to as a second conveying direction X2. The first conveying direction X1 is directed to a front of theprinter 10 herein. The second conveying direction X2 is directed to a rear of theprinter 10 herein. Note that the scanning direction Y corresponds to a width direction of themedium 5, and the conveying direction X corresponds to a longitudinal direction (a winding direction) of themedium 5. The reference symbols F, Rr, L, R, U, and D inFIG. 1 indicate front, rear, left, right, up, and down, respectively. - As illustrated in
FIG. 2 , themedium supplier 20 is disposed diagonally behind below theplaten 11. Themedium supplier 20 supplies the medium 5 onto theplaten 11. Themedium supplier 20 includes a supplyingroll 21 and a supplying motor 22 (seeFIG. 4 ). The supplyingroll 21 rotatably holds theroll 5 a into which themedium 5 is wound. The supplyingroll 21 preferably has a cylindrical shape. The supplyingroll 21 extends in the scanning direction Y. The supplyingroll 21 is rotatable around a center axis that extends in the scanning direction Y. Theroll 5 a of themedium 5 is attached to an outer peripheral portion of the supplyingroll 21. Accordingly, when the supplyingroll 21 rotates, theroll 5 a also rotates in the same direction. Themedium 5 is pulled out from theroll 5 a toward the front (in the first conveying direction X1). - The supplying
motor 22 causes the supplyingroll 21 to rotate. When the supplyingmotor 22 is driven, the supplyingroll 21 rotate accordingly. The supplyingmotor 22 is electrically connected to acontroller 100 and is controlled by thecontroller 100. However, themedium supplier 20 may not include the supplyingmotor 22 that causes the supplyingroll 21 to rotate, and the supplyingroll 21 may merely rotate following the medium 5 as themedium 5 is pulled out. The supplyingroll 21 may not rotate and instead may merely rotatably support theroll 5 a. There is no particular limitation on a configuration of themedium supplier 20. - The
conveyor 30 moves the medium 5 in the conveying direction X. Theconveyor 30 includesgrit rollers 31,pinch rollers 32, and a feed motor 33 (seeFIG. 4 ). Thegrit rollers 31 are provided in theplaten 11. Thegrit rollers 31 are driven by thefeed motor 33 and rotate. Thepinch rollers 32 are disposed over thegrit rollers 31. Thepinch rollers 32 are opposed to thegrit rollers 31. Thepinch rollers 32 are vertically slidable so as to be able to move close to and apart from thegrit rollers 31. When thegrit rollers 31 rotate in a state in which themedium 5 is sandwiched between thepinch rollers 32 and thegrit rollers 31, themedium 5 is conveyed in the first conveying direction X1 (forward) or in the second conveying direction X2 (rearward). As illustrated inFIG. 2 , a conveying path of themedium 5 is set on a route extending from theroll 5 a to theplaten 11 and on theplaten 11. Thefeed motor 33 is electrically connected to thecontroller 100 and is controlled by thecontroller 100. - The first conveying direction X1 is a direction in which the
medium 5 is pulled out from theroll 5 a. The second conveying direction X2 is a direction in which themedium 5 that has been pulled out is moved back toward theroll 5 a. The second conveying direction X2 is an opposite direction to the first conveying direction X1. Theconveyor 30 moves the medium 5 in the conveying direction X by pinching a portion of themedium 5, which has been pulled out from theroll 5 a, by thegrit rollers 31 and thepinch rollers 32. Theconveyor 30 moves the medium 5 in the first conveying direction X1 and the second conveying direction X2. Note that, although only threegrit rollers 31 and twopinch rollers 32 are illustrated inFIG. 1 ,more grit rollers 31 andpinch rollers 32 may be provided such that thegrit rollers 31 are arranged in a line and thepinch rollers 32 are arranged in a line in the scanning direction Y in an actual situation. - The
head mover 40 moves theprint head 60 and the cuttinghead 70 in the scanning direction Y.FIG. 3A andFIG. 3B are front views of theprint head 60 and the cuttinghead 70.FIG. 3A illustrates a state in which afirst carriage 51 on which theprint head 60 is mounted and asecond carriage 52 on which the cuttinghead 70 is mounted are connected to each other.FIG. 3B illustrates a state in which thefirst carriage 51 and thesecond carriage 52 are separated from each other. In the state in which thefirst carriage 51 and thesecond carriage 52 are connected to each other, thehead mover 40 moves thefirst carriage 51 and thesecond carriage 52 as one unit. In the state in which thefirst carriage 51 and thesecond carriage 52 are separated from each other, thehead mover 40 moves only thesecond carriage 52 alone. - As illustrated in
FIG. 3A andFIG. 3B , thehead mover 40 includes aguide rail 41, abelt 42, and a scanning motor 43 (seeFIG. 4 ). Theguide rail 41 is provided over theplaten 11. Theguide rail 41 is disposed farther in the first conveying direction X1 than the supplyingroll 21. Theguide rail 41 extends in the scanning direction Y. Thefirst carriage 51 and thesecond carriage 52 are slidably engaged with theguide rail 41. Theprint head 60 is mounted on thefirst carriage 51. The cuttinghead 70 is mounted on thesecond carriage 52. Theprint head 60 and the cuttinghead 70 are engaged with theguide rail 41 via thefirst carriage 51 and thesecond carriage 52, respectively. Thesecond carriage 52 is engaged with theguide rail 41 on a left side of thefirst carriage 51. - The
belt 42 extends in the scanning direction Y. Thebelt 42 is fixed to an upper portion of a back surface of thesecond carriage 52. Thebelt 42 is connected to thescanning motor 43. When thescanning motor 43 rotates, thebelt 42 runs in the scanning direction Y. Thus, thesecond carriage 52 moves in the scanning direction Y. Thescanning motor 43 is electrically connected to thecontroller 100 and is controlled by thecontroller 100. - The
first carriage 51 and thesecond carriage 52 are connected to each other or are separated from one another by aconnector 80. As illustrated inFIG. 3A andFIG. 3B , theconnector 80 includes afirst connector 81 provided in thefirst carriage 51 and asecond connector 82 provided in thesecond carriage 52. Thefirst connector 81 is provided on a left side portion of thefirst carriage 51. Thesecond connector 82 is provided on a right side portion of thesecond carriage 52. In this preferred embodiment, theconnector 80 connects thefirst carriage 51 and thesecond carriage 52 using magnetic force. One of thefirst connector 81 and thesecond connector 82 includes a magnet and the other one of thefirst connector 81 and thesecond connector 82 includes a magnetic body that attracts the magnet. However, theconnector 80 is not limited to a connector using magnetic force and may have some other configuration, such as an engaging member or the like. Thefirst connector 81 and thesecond connector 82 contact each other, and thus, thefirst carriage 51 and thesecond carriage 52 are connected to each other. - A receiving metal fitting 53 that preferably is preferably L-shaped or substantially L-shaped is provided on a right side of the
first carriage 51. Alock 90 used to fix thefirst carriage 51 is provided around a right end of theguide rail 41. A position of the right end of theguide rail 41 to which thefirst carriage 51 is fixed will be hereinafter referred to as a standby position. Thelock 90 includes ahook 91 that is hooked on the receivingmetal fitting 53 and a locking solenoid 92 (seeFIG. 4 ) that moves thehook 91 between a lock position (seeFIG. 3B ) and an unlock position (seeFIG. 3A ). The lockingsolenoid 92 is electrically connected to thecontroller 100 and is controlled by thecontroller 100. - As illustrated in
FIG. 3A , when printing by theprint head 60 is performed, thehook 91 is set to the unlock position. When thesecond carriage 52 moves rightward and thefirst connector 81 and thesecond connector 82 contact with each other, thesecond carriage 52 and thefirst carriage 51 are connected to each other. As a result, thefirst carriage 51 is movable with thesecond carriage 52 in the scanning direction Y. Theprint head 60 and the cuttinghead 70 are moved in the scanning direction Y so as to cross a moving path of the medium 5 (on theplaten 11 herein). - On the other hand, in performing cutting by the cutting
head 70, as illustrated inFIG. 3B , thefirst carriage 51 is positioned in the standby position, and thehook 91 of thelock 90 is set to the lock position. Thus, movement of thefirst carriage 51 is blocked. When thesecond carriage 52 moves leftward, thefirst connector 81 and thesecond connector 82 are separated from each other and connection of thesecond carriage 52 and thefirst carriage 51 is removed. As a result, in a state in which thefirst carriage 51 stands by in the standby position, the second carriage is movable in the scanning direction Y. At this time, the cuttinghead 70 is moved alone in the scanning direction Y on the moving path of the medium 5 (on theplaten 11 herein). - The
print head 60 is mounted on thefirst carriage 51. Theprint head 60 includes a plurality of ink heads 61. Theprint head 60 includes five ink heads 61 herein, for example. The plurality of ink heads 61 are disposed in a line in the scanning direction Y. A plurality of nozzles (not illustrated) are provided on lower surfaces of the plurality of ink heads 61. Each of the plurality of nozzles ejects ink. The plurality of nozzles are disposed in a line in the conveying direction X. The five ink heads 61 eject inks of five different colors, for example, yellow ink, magenta ink, cyan ink, black ink, and white ink. However, the number of the ink heads 61 is not limited to five, and there is no limitation on colors of the inks ejected by the ink heads 61. - In this preferred embodiment, thermosetting ink is used. The thermosetting ink is, for example, solvent ink or the like, and is dried and cured by heat. The
print head 60 ejects the thermosetting ink to the medium 5 on theplaten 11. Theprint head 60 performs printing on themedium 5 by ejecting the thermosetting ink. - The ink heads 61 are, for example, ink jet heads. However, a printing system of the
print head 60 is not limited to an ink jet system, and theprint head 60 is not limited to a print head including an ink jet head. Theprint head 60 may include a print head that performs, for example, printing of a dot impact system. - The cutting
head 70 is mounted on thesecond carriage 52. The cuttinghead 70 includes acutter 71 and asolenoid 72. Thecutter 71 is able to move in an up-down direction by thesolenoid 72. When thesolenoid 72 is turned on and off, thecutter 71 moves in the up-down direction to contact the medium 5 or be separated from themedium 5. Thesolenoid 72 is electrically connected to thecontroller 100 and is controlled by thecontroller 100. - In this preferred embodiment, the
head mover 40 moves the cuttinghead 70 alone or theprint head 60 and the cuttinghead 70 as one unit in the scanning direction Y. However, a configuration of the head mover is not limited to the above described configuration. The head mover may have a function as a cutting head mover that moves the cuttinghead 70 such that the cuttinghead 70 crosses the conveying path of themedium 5, and there is no other limitation thereon. For example, the print head may be a so-called line head, and may not move. The print head may perform printing on the medium 5 placed on the conveying path. Even in a case in which both of theprint head 60 and the cuttinghead 70 move, the head mover may be divided into a first mover that moves theprint head 60 in the scanning direction Y and a second mover that moves the cuttinghead 70 in the scanning direction Y. For example, theprint head 60 and the cuttinghead 70 may be engaged with different guide rails and may be moved by different driving units. - The
heater 12 is provided under theplaten 11. Theheater 12 is able to contact a lower surface of theplaten 11. Theheater 12 includes, for example, a heating wire or the like. Theheater 12 indirectly heats themedium 5 by heating theplaten 11. However, theheater 12 may heat themedium 5, for example, by blowing a hot air to themedium 5. There is no particular limitation on a system of theheater 12. Theheater 12 is provided on a back side of theplaten 11 herein. Theheater 12 is provided immediately under theprint head 60, in a portion therearound, and behind theprint head 60 in the scanning direction Y. - As illustrated in
FIG. 1 , anoperation panel 110 including a button and a display is disposed on a front surface of a side cover at right side of theprinter 10. Theoperation panel 110 is connected to thecontroller 100.FIG. 4 is a block diagram of theprinter 10. As illustrated inFIG. 4 , thecontroller 100 is connected to theheater 12, the supplyingmotor 22, thefeed motor 33, thescanning motor 43, the ink heads 61, thesolenoid 72, the lockingsolenoid 92, and theoperation panel 110 and controls operation of the components. - There is no particular limitation on a configuration of the
controller 100. Thecontroller 100 is, for example, a microcomputer. There is no particular limitation on a hardware configuration of the microcomputer. The microcomputer includes, for example, an interface (I/F) to receive print data, cutting data, or the like from an external device, such as a host computer or the like, a central processing unit (CPU) configured or programmed to execute an order of a control program, a read-only memory (ROM) to store a program that is executed by the CPU, a random access memory (RAM) used as a working area in which the program is developed, and a storage, such as a memory or the like, to store the above described program and various types of data. Note that thecontroller 100 may not be provided inside theprinter 10, and may be, for example, a computer or the like which is installed outside theprinter 10 and is communicably connected with theprinter 10 via a wired or wireless communication. - As illustrated in
FIG. 4 , thecontroller 100 includes adata storage 101, apreprocessor 102, a cuttingcontroller 103, aprint controller 104, and aheating controller 105. Thecontroller 100 may include some other processor or processors, but illustration and description thereof will be omitted herein. - The
data storage 101 saves cutting data and print data. Work data including the cutting data and the print data is created by an external computer or the like and is transmitted to thecontroller 100. Thedata storage 101 temporarily saves the work data. The cuttingcontroller 103 and theprint controller 104 execute contents of the work data temporarily saved in thedata storage 101. - The
preprocessor 102 controls an operation of pulling out the medium 5 from theroll 5 a before cutting and printing. Although details will be described later, in this preferred embodiment, themedium 5 is pulled out in the first conveying direction X1 (forward herein) once before cutting and printing. Thepreprocessor 102 includes afirst processor 102 a and asecond processor 102 b. Thefirst processor 102 a determines an area (which will be hereinafter referred to as a cutting area) on the medium in which the cuttinghead 70 performs cutting, based on the cutting data saved in thedata storage 101. Thesecond processor 102 b controls theconveyor 30 to pull out the medium 5 from theroll 5 a until at least the cutting area moves along the conveying path of the medium 5 to be located farther in the first conveying direction X1 than the cuttinghead 70. In this preferred embodiment, thesecond processor 102 b is set to convey the medium 5 in the first conveying direction X1 until a rear end of the cutting area reaches directly under the cuttinghead 70. - The cutting
controller 103 performs control related to cutting. The cuttingcontroller 103 according to this preferred embodiment is set to control, after themedium 5 has been pulled out from theroll 5 a by thesecond processor 102 b, thehead mover 40, the cuttinghead 70, and theconveyor 30 to perform cutting while conveying the medium 5 in the second conveying direction X2. In this preferred embodiment, cutting is performed while moving back themedium 5 toward theroll 5 a. - The cutting
controller 103 includes afirst cutting controller 103 a. Thefirst cutting controller 103 a is set to perform, after themedium 5 has been pulled out from theroll 5 a by thesecond processor 102 b, cutting without correcting a cutting position. More specifically, it is also set to start cutting without printing crop marks that are references for the cutting position on themedium 5 and performing position correction using the crop marks. Details of this control will be described later. - The
print controller 104 performs control related to printing. Theprint controller 104 according to this preferred embodiment is set to control, after cutting has been performed on themedium 5 by the cuttingcontroller 103, thehead mover 40, theprint head 60, and theconveyor 30 to perform printing while conveying the medium 5 in the first conveying direction X1. In this preferred embodiment, after cutting is terminated, printing is performed while moving the medium 5 in the first conveying direction X1. - The
print controller 104 includes afirst print controller 104 a. Thefirst print controller 104 a is set to perform, after cutting has been performed on themedium 5 by the cuttingcontroller 103, printing without correcting a print position. More specifically, it is also set to start cutting without performing position correction using the crop marks. Details of this control will be also described later. - The
heating controller 105 controls an operation of theheater 12. Theheating controller 105 is set to stop theheater 12 during cutting and operate theheater 12 during printing. Note that, in this preferred embodiment, theheater 12 is not provided farther in the first conveying direction X1 than theprint head 60 and does not heat themedium 5 after printing, but theheater 12 may heat themedium 5 also after printing. As another option, theheater 12 may heat themedium 5 only after printing. Theheating controller 105 may operate theheater 12 at least one of during printing and after printing. A condition of heating by theheater 12 may be appropriately set in accordance with drying property of ink or the like. - An operation of the
printer 10 according to this preferred embodiment will be described below as comparing the operation with known printing and cutting methods, as appropriate. In the following description, a known method (a first method) will be described first. In the first method, a printer with a cutting head is operative such that a medium is supplied in a form of a roll and cutting is performed after printing. A known method (a second known method) will be described next. In the second method, a printer with a cutting head is operative such that a medium is supplied in a form of a roll and printing is performed after cutting. Note that each of the known printers with a cutting head may have a similar mechanical configuration to that of this preferred embodiment except that each of the known printers includes a crop mark detector. Therefore, in the following description of the known methods, components in common with those in this preferred embodiment are denoted by the same reference symbols used in the description of this preferred embodiment. Each of the first and second known methods is merely an example. - First Known Method
- The first known method is an example of a printing and cutting method in which printing is performed first and cutting is performed after printing.
FIG. 5 is a flowchart illustrating steps of printing and cutting by the first known method.FIG. 6 is a plan view illustrating the medium 5 on which printing and cutting have been performed by the first known method. As illustrated inFIG. 5 , in this preferred embodiment, Step S11 to S20 are executed. - In Step S11, the
medium 5 is pulled out in the first conveying direction X1. In some cases, themedium 5 is already sandwiched between thegrit rollers 31 and thepinch rollers 32 by printing and cutting performed before Step S11. As another option, themedium 5 may be sandwiched by thegrit rollers 31 and thepinch rollers 32 again in this step. In Step S11, thegrit rollers 31 are caused to rotate in a state in which themedium 5 is sandwiched by thegrit rollers 31 and thepinch rollers 32. Thus, themedium 5 is moved in the first conveying direction X1. In subsequent Step S12, themedium 5 is moved in the second conveying direction X2 by thegrit rollers 31 and thepinch rollers 32. In Step S12, themedium 5 is pulled back to a print start position. - The
medium 5 is peeled off from theroll 5 a once by Step S11 described above. After this, themedium 5 is conveyed in the conveying direction X without impairing position accuracy due to adhesion between the medium 5 and theroll 5 a. Themedium 5 is moved back to the print start position in Step S12 in order to perform printing in Step S13 and subsequent steps. Themedium 5 has been reciprocatively moved in the moving conveying direction X once by Steps S11 and S12. - In Step S13 to S15, printing of an
image 200 and crop marks C1 and C2 is performed. In Step S13, the front side crop marks C1 are printed. In Step S13, first, thefirst carriage 51 and thesecond carriage 52 are connected to each other. Thus, theprint head 60 can be moved by thehead mover 40. In printing, theprint head 60 is moved with thefirst carriage 51 in the scanning direction Y and ejects ink. Thus, printing in one position in the conveying direction X is completed. Thereafter, themedium 5 is conveyed in the first conveying direction X1. Next printing is performed in a position in the conveying direction X after the above described movement. By repeating this operation, the front side crop marks C1 are printed on themedium 5. - In Step S14, the
image 200 is printed on themedium 5. In subsequent Step S15, the rear side crop marks C2 are printed on themedium 5. - In Step S13 to S15, the
medium 5 is heated by theheater 12. An area of theplaten 11 behind theprint head 60 is heated by theheater 12. Accordingly, each portion of themedium 5 is heated before and during printing. - Step S16 is a step of waiting for drying ink. In Step S16, a time for waiting for drying ink occurs.
- In Step S17, the
medium 5 is pulled back again to the printing start position in the second conveying direction X2. Themedium 5 is further reciprocatively moved once in the conveying direction X by Steps S13 to S17. - In Step S18, positions of the crop marks C1 and C2 are detected by a crop mark detector, and a correction value for the cutting position is calculated. In Step S19, cutting data is corrected based on the above described correction value. Various technologies for this correction method have been known, and therefore, description thereof will be omitted. Without correcting the cutting position by Steps S18 and S19, a positional relation between the
image 200 and acut line 210 is likely to be shifted. This shift is caused, for example, by expansion and contraction of the medium 5 during printing, a slip caused between the medium 5 and thegrit rollers 31 during conveyance of themedium 5, or the like. Expansion and contraction of the medium 5 are caused, for example, by absorption of ink and heating by theheater 12. - In Step S20, cutting is performed based on the cutting data after being corrected. In Step S20, first, the
first carriage 51 and thesecond carriage 52 are separated from each other. Thus, the cuttinghead 70 can be moved alone. Thecutter 71 is lowered to contact themedium 5. In cutting, themedium 5 is moved in the conveying direction X while moving the cuttinghead 70 in the scanning direction Y. Thus, a cutting edge of thecutter 71 moves along thecut line 210 on themedium 5. Cutting in Step S20 is basically performed while moving the medium 5 in the first conveying direction X1. In a case illustrated inFIG. 6 , cutting is performed in an order indicated by an arrow illustrated inFIG. 6 . Themedium 5 is moved by an amount corresponding to one way (for example, 0.5 reciprocations) in the conveying direction X by Step S20. Note that, as understood fromFIG. 6 , “performing cutting while conveying the medium 5 in the first conveying direction X1” includes a case in which, even when themedium 5 is temporarily moved in the second conveying direction X2 that is an opposite direction to the first conveying direction X1, themedium 5 is finally moved in the first conveying direction X1. - As described above, in the first known method in which printing is performed first and cutting is performed after printing, the
medium 5 is reciprocatively moved once in Steps S11 and S12, is reciprocatively moved once in Steps S13 to S17, and reciprocatively moved 0.5 times in Step S20, that is, themedium 5 is reciprocatively moved 2.5 times in total, in the conveying direction X. In Step S16, a time for waiting for drying ink occurs. Furthermore, in Steps S13 and S15, a time for printing each of the crop marks C1 and C2 occurs, and in Steps S18 and S19, a time for correcting the cutting position occurs. - In the first known method, it is difficult to increase productivity particularly because there is a step of waiting for drying ink.
- Second Known Method
- Next, the second known method will be described. The second known method is an example of a printing and cutting method in which cutting is performed first and printing is performed after cutting.
FIG. 7 is a flowchart illustrating steps of printing and cutting by the second known method. As illustrated inFIG. 7 , in this method, Steps S21 to S33 are executed. - In Steps S21 and S22, similar to Steps S11 and S12 in the first known method, pulling out and pulling back of the medium 5 are executed. The
medium 5 is reciprocatively moved once in the conveying direction X by Steps S21 and S22. - In Steps S23 and S24, only the crop marks C1 and C2 are printed on the
medium 5. In stages of Steps S23 and S24, theimage 200 is not printed. In Step S23, the front side crop marks C1 are printed on the medium 5 while themedium 5 is sent in the first conveying direction X1. In subsequent Step S24, the rear side crop marks C2 are printed on the medium 5 while themedium 5 is subsequently sent in the first conveying direction X1. In Step S25, it is waited for ink forming the crop marks C1 and C2 to dry. - In Step S26, the
medium 5 is pulled back to the print start position in the second conveying direction X2. Themedium 5 is further reciprocatively moved once in the conveying direction X by Steps S23 to S26. - In Step S27, the positions of the crop marks C1 and C2 are detected by the crop mark detector, and a correction value for the cutting position is calculated. In Step S28, the cutting data is corrected based on the above described correction value.
- In Step S29, cutting is performed based on the cutting data after being corrected. Cutting of Step S29 is performed while moving the medium 5 in the first conveying direction X1. In Step S30, the
medium 5 is moved back in the second conveying direction X2. Themedium 5 is reciprocatively moved three times in total in the conveying direction X by the steps described so far. - In Step S31, the positions of the crop marks C1 and C2 are detected by the crop mark detector, and a correction value for the printing position is calculated. In Step S32, the printing data is corrected based on the above described correction value.
- In Step S33, printing is performed based on the printing data after being corrected. Printing of Step S33 is performed while moving the medium 5 in the first conveying direction X1. The
medium 5 is reciprocatively moved 3.5 times in total in the conveying direction X by the above described steps. - As described above, in the second known method in which cutting is performed first and printing is performed after cutting, the
medium 5 is reciprocatively moved 3.5 times in total in the conveying direction X. In Steps S23 and S24, a time for printing each of the crop marks C1 and C2 occurs, and in Step S25, a time for waiting for drying ink forming the crop marks C1 and C2 occurs. Furthermore, in Steps S27 and S28, a time for correcting the cutting position occurs, and in Steps S31 and S32, a time for correcting the print position occurs. - In the second known method, as compared to the first known method, a time for waiting for drying ink forming the
image 200 does not occur, but the time for waiting for drying ink forming the crop marks C1 and C2 still occurs. The number of times themedium 5 is reciprocatively moved is increased to a larger number than that of the first known method. The number of times position correction is performed is also increased. - The number of times the
medium 5 is reciprocatively moved in the second known method can be reduced to a number that is the same as that in the first known method simply by omitting printing of the crop marks C1 and C2. However, when the printing of the crop marks C1 and C2 is simply omitted, the positional relation between thecut line 210 for cutting and theimage 200 is likely to be shifted. Especially in the printer with a cutting head using themedium 5 wound into a roll shape, position accuracy in cutting is highly likely to be impaired by resistance when themedium 5 is pulled out from theroll 5 a. As a result, the positional relation between thecut line 210 and theimage 200 is highly likely to be shifted. - Steps of Printing and Cutting According to This Preferred Embodiment
- In view of the above described problems about productivity and positioning in printing and cutting, the
printer 10 according to this preferred embodiment of the present invention is operative such that a shift between positions of theimage 200 and thecut line 210 is reduced or prevented while increasing productivity.FIG. 8 is a flowchart illustrating steps of printing and cutting according to this preferred embodiment.FIG. 9 is a plan view illustrating the medium 5 on which cutting has been performed by theprinter 10 according to this preferred embodiment.FIG. 10 is a plan view illustrating the medium 5 on which cutting and printing have been performed by theprinter 10 according to this preferred embodiment. As illustrated inFIG. 8 , in this preferred embodiment, Steps S01 to S03 are executed. - In Step S01, the
medium 5 is pulled out in the first conveying direction X1 (forward). In Step S01, themedium 5 is pulled out from theroll 5 a until a cutting area A1 illustrated inFIG. 9 is moved to be located farther in the first conveying direction X1 than the cuttinghead 70. The cutting area A1 is an area on the medium 5 in which the cuttinghead 70 performs cutting. The cutting area A1 is determined based on the cutting data. Accordingly, theprinter 10 conveys the medium 5 in the first conveying direction X1 until all ofcut lines 210 on the cutting data are moved to be located farther in the first conveying direction X1 than the cuttinghead 70. More specifically, theprinter 10 conveys the medium 5 in the first conveying direction X1 until a rear end (an end in the second conveying direction X2) A1 a of the cutting area A1 reaches under the cuttinghead 70. However, themedium 5 may be slightly excessively moved. In that case, an area slightly behind the rear end A1 a of the cutting area A1 is located under the cuttinghead 70. The medium 5 that has adhered to theroll 5 a is pulled out from theroll 5 a by Step S01. The cutting area A1 is moved to a position farther forward than the cuttinghead 70. - In subsequent Step S02, cutting is performed while moving the medium 5 in the second conveying direction X2 (rearward). In a case illustrated in
FIG. 9 , cutting is performed in an order indicated by an arrow illustrated inFIG. 9 . When cutting is terminated, themedium 5 has been already moved back to the print start position. As understood fromFIG. 9 , in this preferred embodiment, “performing cutting while conveying the medium 5 in the second conveying direction X2” includes a case in which, even when themedium 5 is temporarily moved in the first conveying direction X1 that is an opposite direction to the second conveying direction X2, themedium 5 is finally moved in the second conveying direction X2. Themedium 5 is reciprocatively moved once in the conveying direction X by the steps described so far. - Cutting of Step S02 is performed while moving back the
medium 5 that has been pulled out from theroll 5 a once toward theroll 5 a. Accordingly, resistance that blocks movement of themedium 5 due to adhesion of theroll 5 a and themedium 5 is not generated. Therefore, thecut line 210 is able to be processed in a desired position. For example, when, instead of Steps S01 and S02, cutting is performed while moving the medium 5 the first conveying direction X1 first without performing any other steps therebefore, themedium 5 cannot be conveyed by a desired distance because of resistance resulting from peeling off the medium 5 from theroll 5 a, and the position of thecut line 210 is highly likely to be shifted from a target position. - Note that, in Steps S01 and S02, the
heater 12 is stopped. Theheater 12 is used for drying ink and is not needed in cutting. Theheater 12 is stopped in order not to cause the medium 5 to be expanded and contracted by heat herein. However, theheater 12 may be operated also during Steps S01 and S02. - In Step S03, printing of the
image 200 is performed while moving the medium 5 in the first conveying direction X1 (forward). In Step S03, printing of theimage 200 is performed in an order indicated by an arrow illustrated inFIG. 10 . In Step S03, theheater 12 heats theplaten 11. Thus, themedium 5 is heated, and drying ink is promoted. Theimage 200 and thecut line 210 illustrated inFIG. 10 are formed by Step S03. In this preferred embodiment, upon termination of Step S03, all steps of printing and cutting are terminated. Themedium 5 is reciprocatively moved 1.5 times in the conveying direction X by Steps S01 to S03. - As described above, the
printer 10 according to this preferred embodiment determines the cutting area A1, based on the cutting data, and performs Step S01 of pulling out the medium 5 from theroll 5 a until the cutting area A1 is located farther in the first conveying direction X1 than the cuttinghead 70. Furthermore, after Step S01, Step S02 of cutting is performed while moving the medium 5 in the second conveying direction X2. Furthermore, after Step S02, Step S03 of printing while moving the medium 5 in the first conveying direction X1 is performed. According to the above describedprinter 10, the number of times themedium 5 is reciprocatively moved is 1.5 times. According to the above describedprinter 10, the number of times themedium 5 is reciprocatively moved can be reduced as compared to the first and second known methods. Therefore, productivity is further increased as compared to the first and second known methods. As compared to the first known method, productivity is increased in a point that a step of waiting for drying ink is not needed. - According to the above described
printer 10, cutting is performed while moving back themedium 5 that has been pulled out from theroll 5 a once toward theroll 5 a, and therefore, resistance when themedium 5 is pulled out from theroll 5 a is not added during cutting. Therefore, a shift of the cutting position is able to be reduced or prevented. - Furthermore, in this preferred embodiment, a positional relation between the
cut line 210 and theimage 200 is not influenced by expansion and contraction of the medium 5 caused by impact of ink thereon. As described above, a cause of a shift of the positional relation between thecut line 210 and theimage 200 is expansion and contraction of the medium 5 caused by impact of the ink thereon. In theprinter 10 according to this preferred embodiment, cutting is performed before printing. Therefore, expansion and contraction of the medium 5 caused by impact of the ink is not related to the position accuracy in cutting. As a result, theprinter 10 according to this preferred embodiment is able to reduce or prevent a shift of the positional relation between theimage 200 and thecut line 210. - In this preferred embodiment, the
heating controller 105 is set to stop theheater 12 during cutting and operate theheater 12 during printing. Therefore, theheater 12 does not heat themedium 5 during cutting, and expansion and contraction of the medium 5 by heat of theheater 12 are less likely to occur. Accordingly, a shift of the cutting position is able to be reduced or prevented also by the above described configuration. - Note that a cause of the shift of the positional relation between the
image 200 and thecut line 210 is a slip of the medium 5 during conveyance of themedium 5. In this preferred embodiment, a conveying distance of themedium 5 is small, and therefore, an accumulated slip amount of themedium 5 is small. Accordingly, position shifts in cutting and printing are small. Position accuracy in cutting and printing is able to be increased by reducing the conveying distance of themedium 5. The present inventor actually performed printing and cutting by theprinter 10 according to this preferred embodiment and confirmed that there is no problem in the positional relation between the cut line and the image. - Furthermore, the
first cutting controller 103 a according to this preferred embodiment is set to perform, after themedium 5 has been pulled out from theroll 5 a in Step S01, cutting without correcting the cutting position. As illustrated inFIG. 9 , in this preferred embodiment, the crop marks C1 and C2 are not printed, and correction of the cutting position using the crop marks C1 and C2 is not performed. According to the above described configuration, a time required for correcting the cutting position is able to be omitted, and productivity is able to be further increased. A time for printing the crop marks C1 and C2 is able to be also omitted. - Similarly, the
first print controller 104 a according to this preferred embodiment is set to perform, after cutting of Step S02, printing without correcting the print position. In this preferred embodiment, correction of the print position using the crop marks C1 and C2 is not performed before printing. According to the above described configuration, a time required for correcting the print position is able to be omitted, and productivity is able to be further increased. - Preferred embodiments of the present invention have been described above. However, the above-described preferred embodiments are merely examples and the present invention may be implemented in various other forms.
- For example, the above described printer with a cutting head according to a preferred embodiment of the present invention does not perform cutting after correcting the cutting position, but it may do so. For example, the printer with a cutting head may be operative such that a mode in which cutting is performed without correcting the cutting position (the above described preferred embodiment) and a mode in which cutting is performed after correcting the cutting position can be selected. Similarly, the printer with a cutting head may be operative such that a mode in which printing is performed without correcting the print position (the above described preferred embodiment) and a mode in which printing is performed after correcting the print position can be selected. In that case, steps of printing crop marks and performing alignment, based on the crop marks, are added. Even in that case, cutting is performed while moving back the medium in the second conveying direction, and therefore, the medium is moved less than in the second known method accordingly. Therefore, higher productivity than that of the second known method can be realized.
- In the above described preferred embodiment, the ink is thermosetting ink, and the
printer 10 includes theheater 12 that dries the ink. However, the ink is not limited to the thermosetting ink, and may be, for example, photo curable ink.FIG. 11 is a front view illustrating a configuration of thefirst carriage 51 in a case in which photo curable ink is used. As illustrated inFIG. 11 , the printer with a cutting head according to this preferred embodiment includes alight irradiator 54 that irradiates a medium with light that cures ink. Thelight irradiator 54 radiates ultraviolet rays herein. The ink is an ultraviolet curing ink. Thelight irradiator 54 includes anultraviolet lamp 54 a inside. Theultraviolet lamp 54 a is a light source that emits an ultraviolet ray. Thelight irradiator 54 includes anirradiation port 54 b in a lower surface. Theirradiation port 54 b is provided by fitting a cover that transmits ultraviolet rays into an opening in the lower surface of thelight irradiator 54. Thelight irradiator 54 is provided in a left side of theprint head 60 in thefirst carriage 51. Thelight irradiator 54 is moved with theprint head 60 as one unit and irradiates an area on the medium to which theprint head 60 has ejected ink with ultraviolet rays. According to the above described printer with a cutting head, the medium is not heated, and therefore, temperature of the medium during cutting and temperature of the medium during printing is less likely to differ from each other. Therefore, accuracy of alignment of the cutting position with the print position is able to be increased. - In addition, the preferred embodiments described herein do not limit the present invention unless specifically state otherwise.
- The terms and expressions used herein are for description only and are not to be interpreted in a limited sense. These terms and expressions should be recognized as not excluding any equivalents to the elements shown and described herein and as allowing any modification encompassed in the scope of the claims. The present invention may be embodied in many various forms and should be regarded as providing preferred embodiments of the principles of the present invention. These preferred embodiments are provided with the understanding that they are not intended to limit the present invention to the preferred embodiments described in the specification and/or shown in the drawings. The present invention is not limited to the preferred embodiments described herein. The present invention encompasses any of preferred embodiments including equivalent elements, modifications, deletions, combinations, improvements and/or alterations which can be recognized by a person of ordinary skill in the art based on the invention. The elements of each claim should be interpreted broadly based on the terms used in the claim, and should not be limited to any of the preferred embodiments described in this specification or referred to during the prosecution of the present application.
- While preferred embodiments of the present invention have been described above, it is to be understood that variations and modifications will be apparent to those skilled in the art without departing from the scope and spirit of the present invention. The scope of the present invention, therefore, is to be determined solely by the following claims.
Claims (5)
1. A printer comprising:
a holder to rotatably hold a roll onto which a medium is wound;
a conveyer to convey the medium in a first conveying direction in which the medium is pulled out from the roll and in a second conveying direction in which the medium that has been pulled out is moved back toward the roll;
a cutting head;
a cutting head mover to move the cutting head such that the cutting head crosses a conveying path of the medium;
a print head to perform printing on the medium on the conveying path; and
a controller; wherein
the controller is configured or programmed to include:
a data storage to save cutting data and print data;
a first processor to determine, based on the cutting data saved in the data storage, a cutting area on the medium in which the cutting head performs cutting;
a second processor to control the conveyer to pull out the medium from the roll until at least the cutting area is moved along the conveying path of the medium to be located farther in the first conveying direction than the cutting head;
a cutting controller to control, after the medium has been pulled out by the second processor, the cutting head mover, the cutting head, and the conveyer to perform cutting while conveying the medium in the second conveying direction; and
a print controller to control, after cutting has been performed on the medium by the cutting controller, the print head and the conveyer to perform printing while conveying the medium in the first conveying direction.
2. The printer according to claim 1 , wherein the cutting controller includes a first cutting controller set to perform, after the medium has been pulled out from the roll by the second processor, cutting without correcting a cutting position.
3. The printer according to claim 1 , wherein the print controller includes a first print controller to perform, after cutting has been performed on the medium by the cutting controller, printing without correcting a print position.
4. The printer according to claim 1 , further comprising:
a heater that heats the medium; wherein
the print head ejects thermosetting ink onto the medium; and
the controller includes a heating controller set to stop the heater during cutting and operate the heater at least one of during printing and after printing.
5. The printer according to claim 1 , further comprising:
a light irradiator; wherein
the print head ejects photo curable ink onto the medium; and
the light irradiator irradiates the medium with light that cures the ink.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018219521A JP7043386B2 (en) | 2018-11-22 | 2018-11-22 | Printer with cutting head |
JP2018-219521 | 2018-11-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20200164667A1 true US20200164667A1 (en) | 2020-05-28 |
Family
ID=70771115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/686,289 Abandoned US20200164667A1 (en) | 2018-11-22 | 2019-11-18 | Printer with cutting head |
Country Status (2)
Country | Link |
---|---|
US (1) | US20200164667A1 (en) |
JP (1) | JP7043386B2 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007260979A (en) * | 2006-03-27 | 2007-10-11 | Seiko Epson Corp | Recording and cutting composite apparatus and its controlling method |
JP4858267B2 (en) * | 2007-03-28 | 2012-01-18 | マックス株式会社 | Printer device |
CN102574403B (en) * | 2009-07-27 | 2014-08-13 | 株式会社御牧工程 | Printer cutter |
JP6144140B2 (en) * | 2013-07-22 | 2017-06-07 | ローランドディー.ジー.株式会社 | Printer with cutting function and printing method |
-
2018
- 2018-11-22 JP JP2018219521A patent/JP7043386B2/en active Active
-
2019
- 2019-11-18 US US16/686,289 patent/US20200164667A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2020082490A (en) | 2020-06-04 |
JP7043386B2 (en) | 2022-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6272093B2 (en) | Recording apparatus, control method therefor, program, and storage medium | |
KR101360253B1 (en) | Printer Cutter | |
JP4517926B2 (en) | Printer recording paper loading method | |
US20200164667A1 (en) | Printer with cutting head | |
JP5955058B2 (en) | Sheet feeding apparatus, printing apparatus, and sheet processing apparatus | |
US8456500B2 (en) | Printing apparatus and method for controlling printing apparatus | |
JP2010030187A (en) | Printing position control method of printer and printer | |
JP6654052B2 (en) | Ink jet recording device | |
US11007796B2 (en) | Image forming apparatus and control method | |
US9987857B2 (en) | Printing device, and printing method | |
JP7185505B2 (en) | printer with cutting head | |
JP2010023386A (en) | Method for cutting recording paper in printer and printer | |
JP5857780B2 (en) | Printer printing paper warp correction method and printer | |
JP2010023387A (en) | Method for cutting recording paper in printer and printer | |
JP2000037915A (en) | Recorder | |
JP2020062799A (en) | Ink jet printer with cutting head | |
JP7117682B2 (en) | thermal transfer printer | |
JP4385644B2 (en) | Inkjet printer | |
US20190308408A1 (en) | Printer and printing system | |
JP2021008327A (en) | Roll sheet feeder | |
JP2020185707A (en) | Cutting device | |
JP6445807B2 (en) | Recording apparatus, control method therefor, program, and storage medium | |
JP2022102561A (en) | Recording device and control method therefor | |
JP2008238795A (en) | Recorder, control method of recorder and control program | |
JP2019181781A (en) | Printer with cutting head and printing system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ROLAND DG CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MATSUSHIME, KENJI;SUZUKI, NOBUYOSHI;KITAMURA, TAMAKAZU;REEL/FRAME:051033/0513 Effective date: 20191031 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |